Hate 'em. I didn't like them to begin with, and they were far overused in Mists.
They look cool and they are very unique from previous dragons but personally I hate the flying animation, the dragons they added in cataclysm were the worst in terms of design.
Ahem... Proto-Drakes are ugly. I'm sorry, they just are. They are rotting dragons that look like bottom feeders. I'm personally with Kazroshka, I think smaller flying mounts are much nicer. Not annoying in a group of people, and fitting. I was excited upon first seeing the Fey Dragons until I realized their scale. Bigger doesn't translate to better.
But I digress, No i'm not a huge fan of the Serpent mounts either. The size doesn't bother me as much just I only got it for my panda and I don't like it for any other race. Looks silly. I think racial mounts are the way to go. Vanillas land mounts had it right.
I think they're pretty cool. I rode my golden one for awhile in the beginning of the expansion, but I just can't get over the awesomeness of stone drakes <3 Drake of the North Wind 4 lyfeeeeee
That and I ride my Nether Ray a lot because yolo.
I dont dislike them per say, but when I fly on one I feel like im flying crooked or drunk.
horrible mount, doesn't fly straight and it's hard to tell exactly where you are landing.
i used my red cloud disc about 100 times more than all cloud serpents combined because i could pin point perfect my landings and see everything nice and clearly.
I'm not a fan of any of the dragon/drake/serpent mounts. I find the cloud serpent line more pleasant to observe when others ride them, and dragon/drake mounts obnoxious regardless of who's riding them.
I generally prefer smaller mounts that aren't as big as an RV.
"Bananas, like people, sometimes look different when they are naked." Grace Helbig
The animations always seemed horrible, and how it seats you character is just stupid.
Time...line? Time isn't made out of lines. It is made out of circles. That is why clocks are round. ~ Caboose
I like them. My favorite mount right now is the Heavenly Golden Cloud Serpent.
My favorite type of mounts since WotLK's Frostwyrms.